:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --muted: #6b7684;
  --text: #0f172a;
  --accent: #3da5c7;
  --accent-dark: #2563eb;
  --accent-soft: #e5f3f8;
  --border: #e1e7ef;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.06);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3 {
  color: var(--text);
  font-weight: 800;
  line-height: 1.2;
}

.muted {
  color: var(--muted);
}

main {
  display: flex;
  flex-direction: column;
  gap: 80px;
  padding: 0 24px 80px;
}

main.page-top-spacing {
  padding-top: 32px;
}

section {
  width: 100%;
  scroll-margin-top: 120px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: rgba(247, 249, 252, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.brand-name {
  font-size: 1rem;
}

.site-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: var(--shadow);
  padding: 6px;
  background: #fff;
  border: 1px solid var(--border);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  font-weight: 600;
}

.nav-links a {
  padding: 8px 10px;
  border-radius: 10px;
  transition: background 0.2s ease, color 0.2s ease;
  color: var(--muted);
}

.nav-links a:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-select {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-weight: 600;
  cursor: pointer;
}

.header-store-buttons {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-store-buttons img {
  height: 40px;
  width: auto;
  filter: grayscale(0.1);
}

.mobile-menu {
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 1rem;
}